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Temporarily disabled composite processing to show the pure stream. Fixed both automatic calculations of phase — per line and, at input, per pixel.

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This commit is contained in:
Thomas Harte 2017-01-07 12:38:00 -05:00
parent c84004bfa3
commit 5740015f56
2 changed files with 11 additions and 11 deletions
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2
Outputs/CRT/CRT.cpp
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@ -29,7 +29,7 @@ void CRT::set_new_timing(unsigned int cycles_per_line, unsigned int height_of_di
// for horizontal retrace and 500 to 750 µs for vertical retrace in NTSC and PAL TV."
time_multiplier_ = IntermediateBufferWidth / cycles_per_line;
phase_denominator_ = cycles_per_line * colour_cycle_denominator;
phase_denominator_ = cycles_per_line * colour_cycle_denominator * time_multiplier_;
phase_numerator_ = 0;
colour_cycle_numerator_ = colour_cycle_numerator;
phase_alternates_ = should_alternate;

20
Outputs/CRT/Internals/CRTOpenGL.cpp
View File

@ -132,9 +132,9 @@ void OpenGLOutputBuilder::draw_frame(unsigned int output_width, unsigned int out
RenderStage composite_render_stages[] =
{
{&composite_texture_, composite_input_shader_program_.get(), {0.0, 0.0, 0.0}},
{&separated_texture_, composite_separation_filter_program_.get(), {0.0, 0.5, 0.5}},
{&filtered_y_texture_, composite_y_filter_shader_program_.get(), {0.0, 0.5, 0.5}},
{&filtered_texture_, composite_chrominance_filter_shader_program_.get(), {0.0, 0.0, 0.0}},
// {&separated_texture_, composite_separation_filter_program_.get(), {0.0, 0.5, 0.5}},
// {&filtered_y_texture_, composite_y_filter_shader_program_.get(), {0.0, 0.5, 0.5}},
// {&filtered_texture_, composite_chrominance_filter_shader_program_.get(), {0.0, 0.0, 0.0}},
{nullptr}
};
@ -295,7 +295,7 @@ void OpenGLOutputBuilder::prepare_source_vertex_array()
void OpenGLOutputBuilder::prepare_output_shader()
{
output_shader_program_ = OpenGL::OutputShader::make_shader("", "texture(texID, srcCoordinatesVarying).rgb", false);
output_shader_program_->set_source_texture_unit(filtered_texture_unit);
output_shader_program_->set_source_texture_unit(composite_texture_unit);//filtered_texture_unit);
}
void OpenGLOutputBuilder::prepare_output_vertex_array()
@ -367,6 +367,10 @@ void OpenGLOutputBuilder::set_colour_space_uniforms()
void OpenGLOutputBuilder::set_timing_uniforms()
{
const float colour_subcarrier_frequency = (float)colour_cycle_numerator_ / (float)colour_cycle_denominator_;
const float output_width = ((float)colour_cycle_numerator_ * 4.0f) / (float)(colour_cycle_denominator_ * IntermediateBufferWidth);
const float sample_cycles_per_line = cycles_per_line_ / output_width;
OpenGL::IntermediateShader *intermediate_shaders[] = {
composite_input_shader_program_.get(),
composite_separation_filter_program_.get(),
@ -374,17 +378,13 @@ void OpenGLOutputBuilder::set_timing_uniforms()
composite_chrominance_filter_shader_program_.get()
};
bool extends = false;
float phaseCyclesPerTick = (float)colour_cycle_numerator_ / (float)(colour_cycle_denominator_ * cycles_per_line_);
float phase_cycles_per_tick = 0.25f;
for(int c = 0; c < 3; c++)
{
if(intermediate_shaders[c]) intermediate_shaders[c]->set_phase_cycles_per_sample(phaseCyclesPerTick, extends);
if(intermediate_shaders[c]) intermediate_shaders[c]->set_phase_cycles_per_sample(phase_cycles_per_tick, extends);
extends = true;
}
float colour_subcarrier_frequency = (float)colour_cycle_numerator_ / (float)colour_cycle_denominator_;
float output_width = ((float)colour_cycle_numerator_ * 4.0f) / (float)(colour_cycle_denominator_ * IntermediateBufferWidth);
float sample_cycles_per_line = cycles_per_line_ / output_width;
if(composite_separation_filter_program_)
{
composite_separation_filter_program_->set_width_scalers(output_width, output_width);